Improved barrel-head circling and beveling machine



" l UNITED lSTATESY PATENT iOrrIcri.

WILLIAM H; Donna, on CINCINNATI, oIIIo.y l'

nvIPBovl-:D BARREL-HEAD CIRCLING AND esi/Erme MACHINE y Specification forming part of Letters Patent No. 35,674, dated J une M ,18621 To ,all it may concern/.- i

Be it known that I, WILLIAM H. Donuts,

vof the city of `Cincinnati, in the county of. Hamilton and State of Ohio,'have invented a new and useful lImprovement yin Barrel-Head ing-Circling Machines; andI do hereby declarejthat' the following 1s a vfull, clear, and

. exact description ofthe same, referencebeing had to the accompanying drawings, forming l part of this'specification, in which- Figure 1 is a vertical transverse section of a heading-circling machine as improved by.

une.v Figs. 2, 3, 4, 5, and 6 are details or views-of parts of the same. Fig. 7 is a plan or top view, and Fig. 8 a horizontal section of the same. f

n Similar Aletters vof reference in the'several figures indicate corresponding parts. y

rIhe improvements which Lhave made relate, first, to the throwing of the mechanism in and out of gearthrough the direct agency of the saw mechanism; second, to the manner of making the clamping-disks capable of yield ing to irregularities in the'` heading stuff; third, to an angular connection slidingbar for drawing back the heading-stuf-supporting K prongs when the machine is ready to operate;

four-th, to apeculiar formation ofthe bearingbox of the worm or feedshaft; fifth, to an arrangement of the supporting-prongs within the hollow supporting-structure; and, sixth, to a manner of holding the inn'er-.bevel-cutting tools in positions tangential to rthe axis of their stock.` v

To enable others skilled in the art to make and use'my invention, I will proceed to describe the lsame with reference to the drawings.

A designates a hollow.supporting-structure for the mechanism used in circling and beveling barrel-heading stuff to` be arranged -upon and within. lt is in form of a truncated cone which'V enlarges in bell shape from its'base.

Clear through the center of the upper portion of the truncated conea narrow passage, a a' a2,

is formed. Within the space c ccz, and on the upper part `of the cone, clamping-disks B B' are arranged to revolve, being hung on the ends ofshort arbors C C', which 'ndtheir support in boxes b b, formed on the. top of the conical structure A.

The disk B has its clampingface made smooth; but on its outer face cog-teeth c arey `formf,.While the other disk, B', has sharp pins d protruding throughit beyond itsclampingface, the pins having broad heads and being loosely set in the disk, and are confined in positio'n by means of a viiat detachable ring, D,

which has rubber springs e set in one of'its faces for the heads of thopi'ns to bear against. The arbor of the disk Bf hasa collar at its outer end, and it is made longer than the box, in which it turns and slides, in sluier that lthe disk B may be moved'toward and frein the disk B.

From the outer side of Ithe upperfportion I of theconical structure A a slotted bracket,

E, extends horizontally, and upon this'bracket a frame, F, which supports the circling and beveling saw-arbor G, is arranged toswing in the path of a horizontal'circle, being fastened to the same by means of a screw-pivot, f, which extends down through an oblong slot,

g, in the bracket and made radjustable in the same accordingly as the saw H requires to be set in or ont to accommodate stuft' for barrelheads of varying diameters.

The saw H isthrown in andout of operative position by means of an elbowiever, I,

which is pivoted to a bracket, t, of the structure A,A and connected with the saw-arbor frame F by means of a link, J, said link, to-

gether with one end oftheelbow-lever, forxninga toggle-joint. f y Y.

ln construction the saw H is ofthe lordinary dishing form, and. in arrangement it stands in the usual `relation to the circumfer- .ence of the clamping-disks B B. The tools j j, which are combined with the sawl and cut the inner or smaller `bevel with a raking or draw cut by reason of their tangential set, are confined in anew wayto wit, by lateral pressure induced by` means 0i' screw`threadcdA wedge-bolts, j j, which are iiattened on one side, and iitted within recesses of vthe arborstock jl anddrawn up against Vthe. tools by -the clamping-disk B, .and the worm-wheel gears .with a worm, lO, of a transverse feedshaft, P, which has its bearings on thebracket Z' and on the structure A, as indicated at o p. The bearing Z is made hollow below the worm, so as to hold a quantity of lubricating material for lubricating the worm, as indicated at Z2. The feed or worm shaft has two pulleys, Q R, arranged on its outerend, outside of the structure A.` The pulley Q is ,made fast and the pulleyR left loose.Y From these pulleys an endless belt, S, extends and passes round a pulley, g, of the saw-arbor. from the pulley Q upon the pulley R when the saw is thrown out of yoperative position, -and vice versa 'when the saw is thrown into operative position. Thus the feed is governed entirely by the movement o f the saw-frame, and the feed-works are automatic, requiringl no clutch or shipper to stop and start them.

This is a very important thing, and it has not been accomplished in any machine of like character heretofore, all machines having a sepa. rate feed shaft and a clutch or shipper, and

sometimes both, to start and stop them.. On my machine the feed-shaft is so placed thatl when the feed-belt is attached from the pulley on saw-arbor to pulley on feed-shaft below the operation of adj listing the saw-frame on-a horizontal circle, so as to throw the sawin and out of contact withthe'heading stuff, insures the stopping or starting of the feedfw'orks. In .a wordfwhen the saw is thrown into the work, it moving on a circle, thefeed-belt runs on the tight pulley, which causes the feed to.

start simultaneously with the saw, striking.

into the heading stuff, and when the heading is finished and the sawthrown out it carries the feed-beltupon the loose pulley,'st'opping `the feed.

Y T is a bell-crank pivoted to an outside bracket, r, of the structure A.- One arm of this crank extends up outside of the said structure and bears agai-nst the collared end vof the adjust-able arbor C" of theclamping-disk B. The other arm extends laterally to the inside ofthe structure A, and upon it a U-shaped spring, U, rests, the upper ends of said spring bearing, respectively, one against, the outside surface of the structureA and the other against the collar of the movable arbor ofthe clampingdisk B'. a

S is a bent foot lever or 'treadle pivoted to an outside bracket, s, on one side of the structure A,and extending fronisaid bracket entirely across and through the opposite side of the base portion of the structureA.

V is a forked horizontal slidearranged upon the structure vA a short distance below the clamping-disks B B. The prongs o o of this slide extend within the structure A on opposite sides of the screwwheel shaft L, and are long enough when the 'slide has been moved inward the full extent of. the pla)1 allowed it to stand under the space between the clamping-disks, and to support, the heading stuff while it is being clamped between the disks,-

This belt slips.-

Through the other portion of the slide an oblong slot, t, is cut. This slot runs obliquely down thrugh the slide,vand' is situated outside of the circumference of the structure A, being inclosed by a slotted box-form guidebracket, u, of the structure A,as shown. 'This slide and the bell-crankTare connectedto the foot-lever S by means of Vertical rodsV,T X, the rod W being straight and pivoted tothe horizontal arm of the b ell-crankpwithin the structure A, and to the rear portion of thefoot-A lever, while the rod X is angular, as at wfand pivoted by its lower end to the front Aportion of the foot-lever outside of the structure A,

and connected to the slide V through its angular end and the obliqueslot, the angular portion w ofthe rod X being narrower than the slot and occupying such relation toit that it when the foot-lever-is" depressed forces the slide outward and withdraws the prongs from under the heading stuff which may have been"4 verse movement of the lever until the clamp B has been moved out of contact with the circled and beveled or'nished barrel-head.

It will be readily seen that if the prongs were to move back instantly the foot lever or treadle is-depressed, the head would drop be-v .fore it was clamped, and,vice versa, when the head was finished and the `foot taken oii' the lever to let itdropout the prongs'wonld fly in and strike it; but by the peculiar shape and relative widths of the angular partw of the rod and of the oblique slot these difficulties are obviated, as the. head is clamped one way before the prongs are moved back, and unclamped the other way before theprongs slidev in to receive'the next head.

- The general operation is about as follows: The stuff from which the heads are cut is placed between the clamps` ori the prongs,and the operator then depresses the treadle,which forces `the lcl amp B against the stuff, the spurs in the clamp penetrating thestuff and clamping it tightly and yielding to inequalities in thick' ness. The treadle is now pressed down farther and the prongs movedtout of the way by the action of the inclined or angular part of the rod X. The clamp-shaft C being geared to the feed-pulley shaft L, inside the cone struct;

ure, by actuating the togglejointed lever the' saw is moved toward the stud', which starts the feed and rotates the clamps and stuff with themand cuts the head.

What I claim as my invention, and desire to' secure by Letters Patent, isl 1. So arranging the feed or driver shaft and the pulleys thereon relatively to the saw-arbor frame that the movement of thesaw-arbor jections, so that it will adapt itself to pieces of heading of uneven thiekness and hold them firmly while being eut, substantially as de-A scribed. l

3, The angular connection Ysliding bar and slotted slide with prongs operated with or without the foot lever for drawing the prongs back out of the way, so that the heading may revolve when clamped and the feed started, and for producing a lost motion, substantially as set forth.

4. Making the lower half the box or bearing Zl Z2, which supports the wor1n-shaft on the inside of the structure A, hollow, so that it may be filled with oil for the Worm to run 1n, and arranged inside `of the hollow7 pedestal, thus preventing friction and wear and insuring lubrication, substantially as set forth.

5. Arrangingtheheadingsupportingprongs as described, and also the gearing and shafting within the conical structure entirely ont of the Way, and substantially as described:

6. The combination of the inner bevellngtools of a heading-machine with the flattened Wedge screw-bolts j and theirnntsLsnbstantiallj, inthe manner and for the purpose described.

W. Il., DOANE.

Witnesses:

W. E. LoUDoN, J. Q. HAYES. 

